The patch titled
Subject: mm/damon/sysfs: move unsigned long range directory to common module
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-sysfs-move-unsigned-long-range-directory-to-common-module.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-sysfs-move-unsigned-long-range-directory-to-common-module.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/sysfs: move unsigned long range directory to common module
Date: Wed, 26 Oct 2022 22:59:39 +0000
The implementation of unsigned long type range directories can be reused
by multiple DAMON sysfs directories including those for DAMON-based
Operation Schemes and the range of number of monitoring regions. Move the
code into the files for DAMON sysfs common logics.
Link: https://lkml.kernel.org/r/20221026225943.100429-9-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/damon/sysfs.c~mm-damon-sysfs-move-unsigned-long-range-directory-to-common-module
+++ a/mm/damon/sysfs.c
@@ -12,106 +12,6 @@
#include "sysfs-common.h"
/*
- * unsigned long range directory
- */
-
-struct damon_sysfs_ul_range {
- struct kobject kobj;
- unsigned long min;
- unsigned long max;
-};
-
-static struct damon_sysfs_ul_range *damon_sysfs_ul_range_alloc(
- unsigned long min,
- unsigned long max)
-{
- struct damon_sysfs_ul_range *range = kmalloc(sizeof(*range),
- GFP_KERNEL);
-
- if (!range)
- return NULL;
- range->kobj = (struct kobject){};
- range->min = min;
- range->max = max;
-
- return range;
-}
-
-static ssize_t min_show(struct kobject *kobj, struct kobj_attribute *attr,
- char *buf)
-{
- struct damon_sysfs_ul_range *range = container_of(kobj,
- struct damon_sysfs_ul_range, kobj);
-
- return sysfs_emit(buf, "%lu\n", range->min);
-}
-
-static ssize_t min_store(struct kobject *kobj, struct kobj_attribute *attr,
- const char *buf, size_t count)
-{
- struct damon_sysfs_ul_range *range = container_of(kobj,
- struct damon_sysfs_ul_range, kobj);
- unsigned long min;
- int err;
-
- err = kstrtoul(buf, 0, &min);
- if (err)
- return err;
-
- range->min = min;
- return count;
-}
-
-static ssize_t max_show(struct kobject *kobj, struct kobj_attribute *attr,
- char *buf)
-{
- struct damon_sysfs_ul_range *range = container_of(kobj,
- struct damon_sysfs_ul_range, kobj);
-
- return sysfs_emit(buf, "%lu\n", range->max);
-}
-
-static ssize_t max_store(struct kobject *kobj, struct kobj_attribute *attr,
- const char *buf, size_t count)
-{
- struct damon_sysfs_ul_range *range = container_of(kobj,
- struct damon_sysfs_ul_range, kobj);
- unsigned long max;
- int err;
-
- err = kstrtoul(buf, 0, &max);
- if (err)
- return err;
-
- range->max = max;
- return count;
-}
-
-static void damon_sysfs_ul_range_release(struct kobject *kobj)
-{
- kfree(container_of(kobj, struct damon_sysfs_ul_range, kobj));
-}
-
-static struct kobj_attribute damon_sysfs_ul_range_min_attr =
- __ATTR_RW_MODE(min, 0600);
-
-static struct kobj_attribute damon_sysfs_ul_range_max_attr =
- __ATTR_RW_MODE(max, 0600);
-
-static struct attribute *damon_sysfs_ul_range_attrs[] = {
- &damon_sysfs_ul_range_min_attr.attr,
- &damon_sysfs_ul_range_max_attr.attr,
- NULL,
-};
-ATTRIBUTE_GROUPS(damon_sysfs_ul_range);
-
-static struct kobj_type damon_sysfs_ul_range_ktype = {
- .release = damon_sysfs_ul_range_release,
- .sysfs_ops = &kobj_sysfs_ops,
- .default_groups = damon_sysfs_ul_range_groups,
-};
-
-/*
* schemes/stats directory
*/
--- a/mm/damon/sysfs-common.c~mm-damon-sysfs-move-unsigned-long-range-directory-to-common-module
+++ a/mm/damon/sysfs-common.c
@@ -5,7 +5,103 @@
* Author: SeongJae Park <sj@xxxxxxxxxx>
*/
+#include <linux/slab.h>
+
#include "sysfs-common.h"
DEFINE_MUTEX(damon_sysfs_lock);
+/*
+ * unsigned long range directory
+ */
+
+struct damon_sysfs_ul_range *damon_sysfs_ul_range_alloc(
+ unsigned long min,
+ unsigned long max)
+{
+ struct damon_sysfs_ul_range *range = kmalloc(sizeof(*range),
+ GFP_KERNEL);
+
+ if (!range)
+ return NULL;
+ range->kobj = (struct kobject){};
+ range->min = min;
+ range->max = max;
+
+ return range;
+}
+
+static ssize_t min_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ struct damon_sysfs_ul_range *range = container_of(kobj,
+ struct damon_sysfs_ul_range, kobj);
+
+ return sysfs_emit(buf, "%lu\n", range->min);
+}
+
+static ssize_t min_store(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct damon_sysfs_ul_range *range = container_of(kobj,
+ struct damon_sysfs_ul_range, kobj);
+ unsigned long min;
+ int err;
+
+ err = kstrtoul(buf, 0, &min);
+ if (err)
+ return err;
+
+ range->min = min;
+ return count;
+}
+
+static ssize_t max_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ struct damon_sysfs_ul_range *range = container_of(kobj,
+ struct damon_sysfs_ul_range, kobj);
+
+ return sysfs_emit(buf, "%lu\n", range->max);
+}
+
+static ssize_t max_store(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct damon_sysfs_ul_range *range = container_of(kobj,
+ struct damon_sysfs_ul_range, kobj);
+ unsigned long max;
+ int err;
+
+ err = kstrtoul(buf, 0, &max);
+ if (err)
+ return err;
+
+ range->max = max;
+ return count;
+}
+
+void damon_sysfs_ul_range_release(struct kobject *kobj)
+{
+ kfree(container_of(kobj, struct damon_sysfs_ul_range, kobj));
+}
+
+static struct kobj_attribute damon_sysfs_ul_range_min_attr =
+ __ATTR_RW_MODE(min, 0600);
+
+static struct kobj_attribute damon_sysfs_ul_range_max_attr =
+ __ATTR_RW_MODE(max, 0600);
+
+static struct attribute *damon_sysfs_ul_range_attrs[] = {
+ &damon_sysfs_ul_range_min_attr.attr,
+ &damon_sysfs_ul_range_max_attr.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(damon_sysfs_ul_range);
+
+struct kobj_type damon_sysfs_ul_range_ktype = {
+ .release = damon_sysfs_ul_range_release,
+ .sysfs_ops = &kobj_sysfs_ops,
+ .default_groups = damon_sysfs_ul_range_groups,
+};
+
--- a/mm/damon/sysfs-common.h~mm-damon-sysfs-move-unsigned-long-range-directory-to-common-module
+++ a/mm/damon/sysfs-common.h
@@ -9,3 +9,16 @@
#include <linux/kobject.h>
extern struct mutex damon_sysfs_lock;
+
+struct damon_sysfs_ul_range {
+ struct kobject kobj;
+ unsigned long min;
+ unsigned long max;
+};
+
+struct damon_sysfs_ul_range *damon_sysfs_ul_range_alloc(
+ unsigned long min,
+ unsigned long max);
+void damon_sysfs_ul_range_release(struct kobject *kobj);
+
+extern struct kobj_type damon_sysfs_ul_range_ktype;
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
mm-damon-core-split-out-damos-charged-region-skip-logic-into-a-new-function.patch
mm-damon-core-split-damos-application-logic-into-a-new-function.patch
mm-damon-core-split-out-scheme-stat-update-logic-into-a-new-function.patch
mm-damon-core-split-out-scheme-quota-adjustment-logic-into-a-new-function.patch
mm-damon-sysfs-use-damon_addr_range-for-regions-start-and-end-values.patch
mm-damon-sysfs-remove-parameters-of-damon_sysfs_region_alloc.patch
mm-damon-sysfs-move-sysfs_lock-to-common-module.patch
mm-damon-sysfs-move-unsigned-long-range-directory-to-common-module.patch
mm-damon-sysfs-split-out-kdamond-independent-schemes-stats-update-logic-into-a-new-function.patch
mm-damon-sysfs-split-out-schemes-directory-implementation-to-separate-file.patch
mm-damon-modules-deduplicate-init-steps-for-damon-context-setup.patch
mm-damon-reclaimlru_sort-remove-unnecessarily-included-headers.patch
mm-damon-reclaim-enable-and-disable-synchronously.patch
selftests-damon-add-tests-for-damon_reclaims-enabled-parameter.patch
mm-damon-lru_sort-enable-and-disable-synchronously.patch
selftests-damon-add-tests-for-damon_lru_sorts-enabled-parameter.patch
